Beginner questions about my eBay pump

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BlackNDecker	BlackNDecker posted 12 Years Ago HOT Topic Details
Group: Forum Members Posts: 92, Visits: 251	Greetings all, I purchased a pump off eBay last year. I don't see any manufacturer markings so I don't know what brand of pump it is. My first question is about oil replacement...I don't see a place to put the oil. Is it possible this is an oil less pump? Second question refers to the vacuum...when I place my finger over the port it maxes out at a hair over -25 mmHg. Is this sufficient for vacuum infusion or is -30 mmHg mandatory? Thanks in advance!
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Hanaldo	Hanaldo posted 12 Years Ago HOT Post Details
Group: Forum Members Posts: 2.5K, Visits: 28K	I've also found analogue gauges to be pretty useless when it comes to reading the vacuum level accurately. They are useful for determining whether you've got full vac or if you've got a leak, but that's about it. My analogue gauge reads in mm/Hg and psi, and on full vac it goes well past -15psi and well past 30mm/Hg. Which is obviously impossible. But my digital gauge tells me I've got 29.85mm/Hg on full vac. If you are getting pretty serious with infusions, I recommend getting a digital gauge. My analogue gauge worked for me when I first started, but a digital gauge makes it so much easier to find leaks and determine my vac level. Does help when it comes to infusion.
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